<?xml version="1.0" encoding="UTF-8"?> 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" 
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" > 
<head> 
<title>One Hundred Percent Height divs</title> 
<style type="text/css" media="screen"> 
body { 
margin:0; 
padding:0; 
height:100%; /* this is the key! */ 
} 
#left { 
position:absolute; 
left:0; 
top:0; 
padding:0; 
width:200px; 
height:100%; /* works only if parent container is assigned a height value */ 
color:#333; 
background:#eaeaea; 
border:1px solid #333; 
} 
.content { 
margin-left:220px; 
margin-right:220px; 
margin-bottom:20px; 
color:#333; 
background:#ffc; 
border:1px solid #333; 
padding:0 10px; 
} 
#right { 
position:absolute; 
right:0; 
top:0; 
padding:0; 
width:200px; 
height:100%; /* works only if parent container is assigned a height value */ 
color:#333; 
background:#eaeaea; 
border:1px solid #333; 
} 

#left p { 
padding:0 10px; 
} 
#right p { 
padding:0 10px; 
} 
p.top { 
margin-top:20px; 
} 
</style> 
</head> 

<body> 
<div id="left"> 
<p class="top">This design uses a defined body height of 100% which allows setting the 
contained left and right divs at 100% height.</p> 

<p>This design uses a defined body height of 100% which allows setting the contained left and 
right divs at 100% height.</p> 

<p>This design uses a defined body height of 100% which allows setting the contained left and 
right divs at 100% height.</p> 
</div> 

<div class="content"> 
<p>This design uses a defined body height which of 100% allows setting the contained left and 
right divs at 100% height.</p> 
</div> 

<div class="content"> 
<p>This design uses a defined body height which of 100% allows setting the contained left and 
right divs at 100% height.</p> 
</div> 

<div class="content"> 
<p>This design uses a defined body height which of 100% allows setting the contained left and 
right divs at 100% height.</p> 
</div> 

<div id="right"> 
<p class="top">To solve an inheritance issue displayed in div #right as rendered in Opera, class p.top 
using margin-top:20; is applied to the first paragraph of each outer divs.</p> 

<p>This design uses a defined body height which of 100% allows setting the contained left and 
right divs at 100% height.</p> 

<p>This design uses a defined body height which of 100% allows setting the contained left and 
right divs at 100% height.</p> 
</div> 
</body> 
</html> 